Hardware Spec Index

Zephyra PW-4553 Ultra 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Zephyra · SKU PW4553-ULTRA · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index1,995 (Power Supplies scale)
Category rank#40,485
Street price$139
Power850 W (rated)
Performance per dollar14.35
Released2019

Specifications

BrandZephyra
ModelZephyra PW-4553 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-3203 Pro 1000W 80 PLUS Platinum ATX Power Supply2,176$199Compare
Caldera PW-6786 Ti 850W 80 PLUS Gold ATX 3.0 Power Supply1,347$99Compare
Teralux PW-1294 Prime 1000W 80 PLUS Platinum SFX Power Supply1,864$169Compare
Vantrel PW-3915 Plus 850W 80 PLUS Gold ATX 3.1 Power Supply1,598$109Compare
Novexa PW-6488 Ultra 1000W 80 PLUS Gold ATX Power Supply1,918$149Compare
Teralux PW-1084 Ultra 1000W 80 PLUS Gold ATX 3.1 Power Supply1,828$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4553 Ultra 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/62949740 (accessed 2026-10-26).